Problems Transmitting Data Through The Serial Port - Intermec CN30 User Manual

Chapter 4 — Maintaining the CN30 Computer
Problems with Wireless Connectivity (continued)
Problem
The Network Connection icon is in the status bar, but
the host computer is not receiving any data from the
CN30 Computer.
Problems While Scanning Bar Codes
Problem
You cannot see a red beam of light from the scanner when
you press the Scan button and aim the scanner at a bar
code label.
When you release the Scan button or handle trigger, the
Good Read light does not turn off.
The input device attached to the CN30 Computer does
not appear to work well or read bar code labels very
quickly.
166

Problems Transmitting Data through the Serial Port

If you are having problems sending or receiving data through the integrated
serial port on the CN30 Computer, check these possible problems:
• Make sure the CN30 Computer is connected to the PC, host computer,
or RS-232 serial device using the appropriate cable adapter and null
modem cable.
• If the CN30 Computer is in a communications dock, make sure that the
communications dock is connected to the serial device using the appro-
priate cable.
For more information on using the serial port, see "Configuring Serial
Communications" on page 107.
Solution
In a UDP Plus network, there may be a problem with the
connection between the Intermec Application Server and
the host computer. Check with your network administra-
tor or see the user's manual for the Intermec Application
Server.
In a TCP/IP network, there may be a problem with the
connection between the access point and the host com-
puter. Check with your network administrator or use
your access point user's manual.
Solution
There are two possible problems:
• You may be too far away from the bar code label. Try
moving closer to the bar code label and scan it again.
• You may be scanning the bar code label "straight on."
Change the scanning angle and try again.
You can test the effective range of the scanner. Move
within 2 feet of a wall and test the scanner. You need to be
within the scanning range to scan bar code labels. For
help scanning bar codes, see "Scanning Bar Codes" on
page 5.
The Good Read light will remain on if you configure the
CN30 Computer to use continuous/edge triggering. If
you configure the CN30 Computer for level triggering
and the Good Read light remains on, there may be a
problem. Press the Scan button or pull the trigger again
without scanning a bar code label. If the light is still on,
contact your local Intermec representative.
Try setting the Scanner Model command to the specific
input device you have attached. Check the bar code sym-
bologies you have enabled on the CN30 Computer.
Enable only the symbologies that you are using.
CN30 Mobile Computer User's Manual